stay with us. we'll be right back. >>> bono challenged students to focus on social enterprise. >> willmar has the story for us. >> reporter: an exciting night on campus here in georgetown. more than 700 students in attendance along with plenty of vips including u2's fronted man bono. he delivered the key address and talked about social enterprise and the impacted that social media can have as far as change across the world. his main message, there is no them, only us. >> what am i doing in healey hall? i could be down having my third pint at the tunes. >> reporter: bono taking the stage immediately building a sense of camaraderie with the students. his message was clear. the age of social media and technology is providing what he sees as an unprecedented opportunity. >> not just facebook in the heat of tahrir square but the peaceful march across the world of mobile phones, across the parch land and the dense rain forest of the congo, technology is transforming things. >> reporter: he mentioned one,